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According to Chebyshev's theorem, at least 75% of the data fall within 4standard deviations. the average of a test is 75 and the standard deviation

According to Chebyshev's theorem, at least 75% of the data fall within 4standard deviations. the average of a test is 75 and the standard deviation is 2.4 find the interval in which at least 88.9% of the data falls.

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